bors 44e3daf5ee Auto merge of #80459 - mark-i-m:or-pat-reg, r=petrochenkov ...

Implement edition-based macro :pat feature

This PR does two things:
1. Fixes the perf regression from https://github.com/rust-lang/rust/pull/80100#issuecomment-750893149
2. Implements `:pat2018` and `:pat2021` matchers, as described by `@joshtriplett`  in https://github.com/rust-lang/rust/issues/54883#issuecomment-745509090 behind the feature gate `edition_macro_pat`.

r? `@petrochenkov`

cc `@Mark-Simulacrum`

2020-12-31 14:52:26 +00:00

..

src

Auto merge of #80459 - mark-i-m:or-pat-reg, r=petrochenkov

2020-12-31 14:52:26 +00:00

Cargo.toml

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